Question

A square and a rectangle has same perimeter if the length of the square is 80cm and breadth of the rectangle is 60 cm find the length of the rectangle.​

Answer 1

Side of square= 80cm

perimeter = 4×80= 320cm

as given,

perimeter of square= perimeter of rectangle.

perimeter of rectangle= 2(l+b)

2(l+b)=320

2(l+60)=320

2l+120=320

2l=320-120

2l= 200

l= 200÷2

l= 100

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